[go: up one dir, main page]

GB570568A - Improvements in radiators of radioelectric waves - Google Patents

Improvements in radiators of radioelectric waves

Info

Publication number
GB570568A
GB570568A GB12051/42A GB1205142A GB570568A GB 570568 A GB570568 A GB 570568A GB 12051/42 A GB12051/42 A GB 12051/42A GB 1205142 A GB1205142 A GB 1205142A GB 570568 A GB570568 A GB 570568A
Authority
GB
United Kingdom
Prior art keywords
wave
radiators
parabolic
metallic
arrangec
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB12051/42A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thales SA
Original Assignee
CSF Compagnie Generale de Telegraphie sans Fil SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CSF Compagnie Generale de Telegraphie sans Fil SA filed Critical CSF Compagnie Generale de Telegraphie sans Fil SA
Publication of GB570568A publication Critical patent/GB570568A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • H01Q19/18—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces having two or more spaced reflecting surfaces
    • H01Q19/19—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces having two or more spaced reflecting surfaces comprising one main concave reflecting surface associated with an auxiliary reflecting surface

Landscapes

  • Aerials With Secondary Devices (AREA)

Abstract

570,568. Directive wireless signalling; wave guides. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Aug. 26, 1942, No. 12051. Convention date, June 15, 1940. [Class .40 (v)] For radiating short wave: directionally, a pair of metallic cones 3, 4 with their apices facing each other are arrangec near the focus 2 of a metallic mirror 1 preferably of parabolic form. Energy may be fed to the radiator through a wave guide 5 whose open end ter minates at the truncated cone 4. The reflector may be in the form of a paraboloid or a parabolic cylinder.
GB12051/42A 1940-06-15 1942-08-26 Improvements in radiators of radioelectric waves Expired GB570568A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR971483T 1940-06-15

Publications (1)

Publication Number Publication Date
GB570568A true GB570568A (en) 1945-07-12

Family

ID=9513793

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12051/42A Expired GB570568A (en) 1940-06-15 1942-08-26 Improvements in radiators of radioelectric waves

Country Status (3)

Country Link
US (1) US2477694A (en)
FR (1) FR971483A (en)
GB (1) GB570568A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3045239A (en) * 1949-12-14 1962-07-17 Westinghouse Electric Corp Parabolic feed system
US3218643A (en) * 1961-03-01 1965-11-16 Peter W Hannan Double-reflector antenna with critical dimensioning to achieve minimum aperture blocking
US3254342A (en) * 1963-07-09 1966-05-31 Bell Telephone Labor Inc Antenna system wherein beamwidth variation is achieved by changing shape of intermediate reflector
US3295136A (en) * 1963-07-09 1966-12-27 Bell Telephone Labor Inc Antenna system wherein beamwidth variation is achieved by changing aperture area of primary antenna
GB2120855A (en) * 1980-12-22 1983-12-07 Cyril Victor Bunny Jemcy conical receiving antenna

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2714659A (en) * 1951-07-30 1955-08-02 Rca Corp Broad band unidirectional antenna
US2817837A (en) * 1953-06-16 1957-12-24 Bell Telephone Labor Inc Microwave horn and paraboloidal reflector antenna system
US3009154A (en) * 1957-09-05 1961-11-14 Philco Corp Directive antenna system
NL272285A (en) * 1960-12-19
US3235870A (en) * 1961-03-09 1966-02-15 Hazeltine Research Inc Double-reflector antenna with polarization-changing subreflector
US3231893A (en) * 1961-10-05 1966-01-25 Bell Telephone Labor Inc Cassegrainian antenna with aperture blocking compensation
US3209361A (en) * 1963-01-14 1965-09-28 James E Webb Cassegrainian antenna subreflector flange for suppressing ground noise
US3241147A (en) * 1963-12-16 1966-03-15 Bell Telephone Labor Inc Antenna utilizing intermediate cuspate reflector to couple energy from feed to main reflector

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL42962C (en) * 1932-07-08
FR757228A (en) * 1932-09-16 1933-12-22 Meaf Mach En Apparaten Fab Nv Reflector device for ultra-short waves
US2112282A (en) * 1934-09-03 1938-03-29 Telefunken Gmbh Ultrashort wave antenna system
US2206923A (en) * 1934-09-12 1940-07-09 American Telephone & Telegraph Short wave radio system
US2115788A (en) * 1935-06-08 1938-05-03 Telefunken Gmbh Ultrashort wave system
US2203807A (en) * 1937-08-18 1940-06-11 Rca Corp Radio beam system
US2416698A (en) * 1938-04-29 1947-03-04 Bell Telephone Labor Inc Radiation and reception of microwaves
US2370053A (en) * 1940-12-31 1945-02-20 Rca Corp Directive antenna system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3045239A (en) * 1949-12-14 1962-07-17 Westinghouse Electric Corp Parabolic feed system
US3218643A (en) * 1961-03-01 1965-11-16 Peter W Hannan Double-reflector antenna with critical dimensioning to achieve minimum aperture blocking
US3254342A (en) * 1963-07-09 1966-05-31 Bell Telephone Labor Inc Antenna system wherein beamwidth variation is achieved by changing shape of intermediate reflector
US3295136A (en) * 1963-07-09 1966-12-27 Bell Telephone Labor Inc Antenna system wherein beamwidth variation is achieved by changing aperture area of primary antenna
GB2120855A (en) * 1980-12-22 1983-12-07 Cyril Victor Bunny Jemcy conical receiving antenna

Also Published As

Publication number Publication date
US2477694A (en) 1949-08-02
FR971483A (en) 1951-01-17

Similar Documents

Publication Publication Date Title
GB570568A (en) Improvements in radiators of radioelectric waves
US2370053A (en) Directive antenna system
GB493695A (en) Improvements in or pertaining to the transmission and/or reception of electromagnetic waves
GB263753A (en) Directive projecting and receiving system for use in wireless telegraphy or telephony
US2342721A (en) Parabolic reflector
GB647890A (en) Directional antenna systems
US2054896A (en) Reflector system for ultrashort electric waves
GB550009A (en) Broadcasting antenna systems
GB495977A (en) Ultra short wave transmission systems
GB483797A (en) Improvements in or relating to directive radio systems
GB801886A (en) Improvements in or relating to systems for radiating ultra high frequency waves
GB422659A (en) Improvements in or relating to ultra-short wave transmitting arrangements
GB1160280A (en) Improvements in Antennas for Radio Waves and in Particular Cassegrain Antennas
GB442193A (en) Improvements in or relating to directive wireless signalling
GB578018A (en) Improvements in or relating to broadcast antennae and especially antennae for centimetre waves
GB501429A (en) Improvements in or relating to reflectors for electromagnetic waves
GB536823A (en) Improvements in feeders for aerials
US2540757A (en) Antenna
GB320425A (en) Improvements in or relating to aerials for use in wireless telegraphy and telephony
JPS5423450A (en) Reflector antenna
GB576442A (en) Improvements in radiating systems of electro-magnetic waves
GB464975A (en) Ultra-short wave radio transmitters
GB402835A (en) Improvements in or relating to directional radio beam systems
GB356635A (en) Improvements in or relating to antenna systems
GB576941A (en) Improvements in directive wireless systems